John Charles Calhoun (December 14, 1879 – February 27, 1947), nicknamed Jack and Red, was an American baseball player for the St. Louis Cardinals in 1902.
The 22-year-old ballplayer made his major league debut on June 27, 1902 and played in his final game on September 18 of that year.
In 20 games (64 at-bats), he hit .156 with two doubles, one triple and eight RBI.
From 1913 to 1916, he headed the Binghamton Bingoes, leading them to league championships in 1913 and 1915.
He last managed the Wilkes-Barre Barons in 1917, leading them to a league championship as well.